Method and system for detecting interruption of communications and for automatically re-establishing the communications

Abstract

Disclosed is a computerized method comprising: a) reception, by a platform (3), of a communication interruption information item; b) reception, by the platform (3), of an identifier of the terminals initially in communication; c) the emission of a request for communication destined for the second terminal (2); d) in case of failure, repeating the previous step; e) upon the establishment of communication between the platform (3) and the second communication terminal (2), emitting a request for communication with the first communication terminal (1); f) upon the establishment of the communication between the communication management platform (3) and the first communication terminal (1), placing the two terminals (1, 2) in communication with one another.

Description

[0001] The invention falls within the field of communication management.

[0002] Automatic callback services exist on the landline network. Such services allow you to automatically call back a contact whose line is busy. This type of functionality is notably available in some private telephone exchanges, generally used in businesses, for example known by the acronym PABX for " Private Automatic Branch Exchange ».

[0003] Thus, when user A calls user B and B is already on a call, user A has the option to activate an automatic callback function (for example, via a key on their device). When user B is reachable again, both users are automatically called back to connect with each other.

[0004] However, such systems cannot restore interrupted communication between two terminals. US documents 2016 / 065733 A1, 2006 / 203738 A1, 2008 / 037746 A1, and 2008 / 081627 A1 address a similar issue. For example, if communication is unintentionally interrupted, users may not know the reason. Several situations can arise, none of which are satisfactory for users: Each of the two callers waits for the other to call back; both callers try to call back simultaneously. Each of their calls then risks being forwarded to the called party's voicemail (voicemail forwarding due to a busy signal); one of the users is unreachable because they are disconnected from the network (loss of network connection, battery depletion, etc.). The second user tries to call the first back but is unsuccessful.

[0005] The invention improves the situation.

[0006] A method for alerting to the interruption of a communication session is proposed, implemented by an alerting device of a first communication terminal according to claim 1, a communication terminal according to claim 7, a communication management method according to claim 8, a communication management device according to claim 13. The dependent claims describe preferred embodiments of the invention.

[0007] According to an example, the alert process includes: an emission, following an interruption of a first communication session between the first communication terminal and a second communication terminal, of an information of interruption of the first communication session between the first communication terminal and the second communication terminal to a communication management device, the information emitted of interruption of the first communication session including a command to restore the first communication session between the first communication terminal and the second communication terminal.

[0008] This process eliminates the need for certain user actions. Specifically, users no longer need to redial the contact's number or repeatedly attempt to call back until the contact is available again. Furthermore, users no longer need to know the reason for the dropped call. This process therefore simplifies the use of communication tools by mitigating accidental interruptions. Moreover, the time saved for the user is significant.

[0009] According to an example, the communication terminal, called the first communication terminal, includes a communication session interruption alert device capable of transmitting, following an interruption of a first communication session between the first communication terminal and a second communication terminal, an interruption information of the first communication session between the first communication terminal and the second communication terminal to a communication management device, the transmitted interruption information of the first communication session including a command to restore the first communication session between the first communication terminal and the second communication terminal.

[0010] According to an example, the communication management process includes: following the receipt, by the communication management device, of information regarding the interruption of a communication session between a first communication terminal and a second communication terminal, the issuance of a request to establish a second communication session to the second communication terminal triggered by the received information regarding the interruption of the first communication session, the received information regarding the interruption of the first communication session including a command to re-establish the first communication session between the first communication terminal and the second communication terminal.

[0011] According to an example, the communication management device includes a requester capable of issuing a request to establish a second communication session to the second communication terminal triggered by an interruption information of a first communication session between a first communication terminal and a second communication terminal, the interruption information having been received by the communication management device from the first communication terminal.

[0012] According to another aspect of the invention, a computer program is proposed that includes instructions for implementing one of the methods as defined herein when this program is executed by a processor. According to another aspect of the invention, a non-transient, computer-readable recording medium is proposed on which such a program is recorded.

[0013] The following features may optionally be implemented. They may be implemented independently or in combination with each other: The notification of a communication session interruption includes a first identifier associated with the first communication terminal and a second identifier associated with the second terminal. This allows the identifiers of the two terminals participating in the interrupted communication session to be transmitted along with the communication session interruption notification. The alerting process involves detecting an interruption of the first communication session between the first and second communication terminals. This allows a user to indicate that the communication termination was due to an interruption. They do not need to repeat their request, as this is handled automatically by the communication management system until the communication is restored.The communication management process includes, in the event of a failure to establish the second communication session between the communication management device and the second communication terminal, repeating the step of sending a request to establish a second communication session to the second communication terminal. This automates the reiteration of requests.The communication management process includes, upon establishment of the second communication session between the communication management device and the second communication terminal, issuing a request to establish a third communication session with the first communication terminal. Upon establishment of the third communication session between the communication management device and the first communication terminal, a new first communication session is established between the first and second terminals by joining the established second and third communication sessions. This allows communication to be re-established between the first and second terminals following the communication request.The communication management process includes, following the establishment of the third communication session between the communication management device and the first communication terminal, the establishment of a new first communication session between the first and second terminals by joining the established second and third communication sessions. This allows communication to be re-established between the first and second terminals in response to the communication request. In the communication management process, the communication management device receives information indicating the interruption of the first communication session between the first and second terminals via a data exchange network. This allows the nature of the exchanges containing the information to be predicted.In the communication management process, the first communication sessions between the first communication terminal and the second communication terminal are video communications.

[0014] Other features, details, and advantages of the invention will become apparent upon reading the detailed description below and analyzing the accompanying drawings, in which: there Figure 1 illustrates a system comprising a first and a second communication terminal as well as a communication management platform according to the invention; the Figure 2 illustrates a method for establishing communication from a first communication terminal to a second communication terminal implemented by a communication management platform according to the invention; and the Figure 3 illustrates a method of establishing communication from a first communication terminal to a second communication terminal implemented by the first communication terminal according to the invention;

[0015] The drawings and description below contain, for the most part, elements of a definite nature. They can therefore not only serve to better explain the present invention, but also contribute to its definition, if necessary.

[0016] In the following, the communication network between two terminals is generally referred to as a "communication network," without distinguishing whether it is a fixed-line telephone network, a mobile telephone network, or a combination of several types of networks. A fixed-line telephone network and a mobile telephone network can thus be seen as subsets, or parts, of the communication network.

[0017] There Figure 1 illustrates a system 100. The system 100 comprises a first communication terminal 1 (or TC1), a second communication terminal 2 (or TC2) and a communication management device 3, in particular, constituting or implemented in a communication management platform 3 (or CMP 3) as illustrated by the figure 1 The first communication terminal 1 and the second communication terminal 2 are distinct communication terminals.

[0018] Alternatively (not illustrated), the communication management device 3 can be implemented in the first communication terminal.

[0019] There Figure 1 represents system 100 at a time t. This time corresponds to the period between the end of step 1008 and the beginning of step 1009 of the Figure 2 described in detail below.

[0020] In the example presented here, at least one of the first communication terminal 1 and second communication terminal 2 is a mobile phone. At least one of the first communication terminal 1 and second communication terminal 2 is, for example, a multifunction phone (more commonly known by its English term). « smartphone " . At least one of the first communication terminal 1 and second communication terminal 2 houses a SIM card (English acronym for " Subscriber Identity Module " associated with an IMSI subscriber identifier (English acronym for " International Mobile Subscriber Identity An IMSI subscriber identifier allows a communication terminal to be identified within the communication network to which it connects. The IMSI subscriber identifier is considered "private" in the sense that it is primarily used by communication network operators to identify and locate communication terminals on the communication network and for the proper routing of communications, without generally being known to users.

[0021] Alternatively, the first communication terminal 1 and / or the second communication terminal 2 are landline telephones. Such a communication terminal may lack a SIM card and an IMSI subscriber identifier.

[0022] In addition, there is an MSISDN caller ID (English acronym for « Mobile Station International Subscriber Directory Number The MSISDN caller ID, on the other hand, is generally assigned by a service provider to a communication terminal subscribing to the service, whether it be fixed or mobile telephony. It is considered "public" in the sense that it is generally known to users and corresponds to what is commonly called a "telephone number".

[0023] A mobile phone service provider maintains a mapping table between MSISDN caller IDs and IMSI subscriber IDs. A fixed-line service provider maintains a mapping table between MSISDN caller IDs and a geographically known fixed-line network endpoint. Under normal operation, a communication session is initiated by the calling terminal, referred to as the first terminal, by providing its service provider with an MSISDN caller ID, referred to as the second identifier, from the user's terminal, referred to as the second terminal.Then, when the second MSISDN corresponds to a mobile phone line, the caller's service provider identifies at least one matching second IMSI subscriber ID to route the communication session to the called mobile phone terminal. This process is generally transparent to users who are unaware of their respective IMSI subscriber IDs. When the second MSISDN caller ID corresponds to a fixed phone line, the caller's service provider identifies the call endpoint on the corresponding fixed network—that is, the second fixed phone terminal—to route the communication session to that second phone terminal.

[0024] In the following description, the MSISDN call identifiers of the first communication terminal 1 and the second communication terminal 2 are referenced respectively, for the first identifier associated with the first communication terminal, IA1 and, for the second identifier associated with the second communication terminal, IA2.

[0025] Alternatively, the first communication terminal 1 and / or the second communication terminal 2 are connected to the communication network via a private (or local) telephone communication network, for example via a PABX (Private Branch Exchange) Private Automatic Branch eXchange " . In such an embodiment also, the first communication terminal 1 and / or the second communication terminal 2 have respectively a first call identifier IA1, and / or a second call identifier IA2.

[0026] The communication management device 3 is configured to re-establish an initial communication session between the first communication terminal 1 and the second communication terminal 2 following an interruption of the initial communication session. For example, the communication management device PGC 3 is a mobile telephony communication platform. Alternatively, the communication management device PGC 3 is an interactive voice response (IVR) system, handling incoming calls using recorded voice messages or speech synthesis. The caller interacts with the system using voice or pre-set tones generated via the keypad on their telephone.

[0027] A method for managing communication during a first telephone communication session between a first communication terminal 1 (e.g., TC1) and a second communication terminal 2 (e.g., TC2), particularly via a communication management device (e.g., a PGC3 communication platform), will now be described with reference to the Figure 2 .

[0028] Typically, the context for implementing the process is as follows: an initial communication session is established between a first communication terminal 1 and a second communication terminal 2 at the request of one of the first and second communication terminals. The initial communication session is closed even though the user of the first communication terminal 1 and the user of the second communication terminal 2 wish to continue communicating: the initial communication session is then said to be interrupted because it is not a voluntary but an involuntary closure.

[0029] During step 1001, the communication management device receives an interruption notification for the first communication session between the first communication terminal 1 and the second communication terminal 2. If at least one of the first communication terminal 1 and the second communication terminal 2 remains connected to a communication network, the interruption notification for the first communication session can be issued from at least one of the first communication terminal 1 and the second communication terminal 2. In the example described here, the second communication terminal 2 is considered to be temporarily disconnected from the network. Therefore, the interruption notification for the first communication session is issued from the first communication terminal 1.Alternatively, the communication interruption information is issued by the communication network, or by a piece of equipment on the communication network used by the initial communication session. Specifically, the communication session interruption information can be included in a message or command sent to the communication management device.

[0030] The transmission of such information upon the interruption of the first communication session can be automated. By "automated," we mean that no action on the part of the user is required to trigger the sending of the communication session interruption information. The transmission of the information is triggered by an alerting device, particularly on the first communication terminal. For example, the alerting device implements a computer program previously installed on the alerting device itself or on the terminal implementing the alerting device, often called an "application" in the case of multifunction phones. For example, the communication session interruption information can be sent using the Hypertext Transfer Protocol, better known by its abbreviation "HTTPS". HTTP ».

[0031] The communication management device 3 receives a first identifier associated with the first communication terminal 1, and a second identifier associated with the second communication terminal 2, either in or with the communication session interruption information during the first step 1001, or during a step 1002. Specifically, the first and second identifiers are transmitted from at least one of the first communication terminal 1 and second communication terminal 2 (from the first communication terminal 1 in the example shown in the figures). For example, the first and second identifiers transmitted correspond to the subscriber and / or caller IDs (IMSI or MSISDN) IA1 and IA2. In other words, the communication management device PGC3 receives the telephone numbers of the first communication terminal 1 and the second communication terminal 2.

[0032] The reception of communication session interruption information (step 1001) and the reception of the first and second identifiers (step 1002) can be implemented one after the other or even be implemented simultaneously, for example by receiving a data set including at least the two identifiers IA1 and IA2.

[0033] During step 1003, the communication management device PGC3 sends a request to establish a second communication session REQ1 to the second communication terminal from which the communication session interruption data (specifically, communication session interruption information and / or the first and second identifiers) was not received during the previous steps (1001 and / or 1002). In other words, in the example, the communication management device PGC3 received data from the first communication terminal TC1 but not from the second communication terminal TC2. The communication management device PGC3 therefore sends the request to establish a second communication session REQ1 to the second communication terminal 2 using the second identifier IA2 received previously, specifically during step 1002.In the example described here, the PGC3 communication management device requires the establishment of a second communication session, in particular by making an outgoing telephone call (a specific implementation of the first request to establish a second communication session REQ1) to the second communication terminal 2.

[0034] Optionally, if the communication management device is an interactive voice response (IVR) system, the PGC3 communication management device establishes an application session with the first communication terminal and sends a pre-recorded voice message to that terminal. This voice message, for example, instructs the user of the first communication terminal (1) on how to re-establish the interrupted communication session with the second communication terminal (2). In this example, the voice message might instruct the user to remain on the line and wait for the next step of the process to be automatically implemented, namely the establishment of the second communication session between the communication management device (3) and the second communication terminal (2).

[0035] In particular, step 1003 of the request to establish the second communication session is timed, that is to say that the REQ1 request is not issued immediately after the reception of the interruption information and / or the first and second identifiers during step 1001 and / or step 1002. This reception of the interruption information and / or the first and second identifiers during step 1001 and / or step 1002 triggers a time delay of a predefined period of time after which the REQ1 request to establish the second communication session is issued.

[0036] During step 1004, the establishment or non-establishment of the second communication session between the second communication terminal TC2 and the communication management device PGC3 is verified. If the second communication terminal 2 has received the REQ1 request to establish a second communication session with the communication management device 3 and if the second communication terminal 2 is ready to establish the second communication session, the second communication session between the second communication terminal 2 and the communication management device 3 is established; in particular, a communication channel is opened between the second communication terminal 2 and the communication management device PGC3.

[0037] If the communication management device 3 is not implemented in the first communication terminal 1: for example, if the communication management device 3 is implemented in a PG3 communication management platform, the next step 1008 is implemented.

[0038] If the second communication session is not established (for example, if the REQ1 request is not received and / or the second communication terminal 2 is unable to establish a communication session), a failure to establish the second communication session between the PGC3 communication management device and the second communication terminal 2 is recorded. This failure triggers the repetition of step 1003, which requests the establishment of a second communication session. Optionally, if the communication management device is an interactive voice response (IVR) system, the PGC3 communication management device sends a pre-recorded voice message to the second communication terminal 2.For example, the voice message asks the user of the second communication terminal to wait until the first communication session between the second communication terminal and the first communication terminal is restored.

[0039] The triggering of the retrieval at step 1004 can be timed (in case the establishment of the second communication session between the PGC3 communication management device and the second communication terminal 2 fails). For example, each iteration is separated from the previous and following iterations by a predetermined period. This period can be configurable. Typically, this period is 30 seconds. Thus, the request to establish the second communication session, implemented, for example, as a callback attempt to the second communication terminal 2, is repeated every 30 seconds until the second communication session is established. Furthermore, at least one maximum limit can be set, in terms of the number of iterations and / or time, before the communication management process is interrupted in case of repeated failures.

[0040] During step 1008, following the establishment of the second communication session between the communication management device 3 and the second communication terminal 2, the communication management device PGC3 sends a REQ2 request to establish a third communication session to the first communication terminal from which data relating to the interruption of the communication session was received during the previous steps (1001 and / or 1002). For example, the REQ2 request to establish a third communication session can be implemented as an outgoing telephone call being made by the communication management device PGC3 to the first communication terminal 1.

[0041] In the example illustrated by the figure 2 , if the third communication session between the PGC3 communication device and the first communication terminal 1 is not established, the PGC3 communication device does not reiterate the request to establish the third communication session REQ2 to the first communication terminal 1.

[0042] Alternatively (not shown), if the third communication session is not established (for example, if the REQ2 request is not received and / or the first communication terminal 1 is unable to establish a communication session), a failure to establish the third communication session between the PGC3 communication management device and the first communication terminal 1 is recorded. The failure to establish the second communication session triggers the repetition of step 1008, which requests the establishment of a third communication session.

[0043] The triggering of the re-emission of the request to establish a third communication session can be timed (in case the establishment of the second communication session between the PGC3 communication management device and the second communication terminal 2 fails). For example, each iteration is separated from the previous and following iterations by a predetermined period. This period can be configurable. Typically, this period is 30 seconds. Thus, the renewal of the request to establish the second communication session, implemented, for example, as a callback attempt to the second communication terminal 2, is repeated every 30 seconds until the second communication session is established. Furthermore, at least one maximum limit can be set, in terms of the number of iterations and / or time, before the communication management process is interrupted in case of repeated failures.

[0044] Optionally, following the failure to establish the third communication session, if the communication management device is an interactive voice response (IVR) system, the PGC3 communication management device sends a voice message to the second communication terminal 2 before terminating the second communication session. For example, the voice message informs the user of the second communication terminal 2 that the first communication terminal 1 is unreachable.

[0045] During step 1009, following the establishment of the third communication session between the communication management device 3 and the first communication terminal 1, the communication management device PGC connects the first terminal 1 and the second terminal 2 to each other by re-establishing the first communication session from the established second and third communication sessions. Optionally, the implementation of said communication, that is, the establishment of the new first communication session, also called the re-establishment of the first communication session, is carried out by abutting the third communication session (between the communication device 3 and the first communication terminal 1) and the second communication session (between the communication management device 3 and the second communication terminal 2).Thus, the first communication session, initially interrupted between the first communication terminal TC1 and the second communication terminal TC2, is then restored.

[0046] Alternatively, equipment belonging to the network, and distinct from the first terminal 1, second terminal 2 and platform 3, controls the communication between the first terminal 1 and second terminal 2, i.e. the establishment of the first communication session.

[0047] An alert procedure implemented by an alert device of a first communication terminal 1 will now be described with reference to the Figure 3 . References TC1, TC2 and PGC3 describe organs respectively similar to those of the Figure 1 .

[0048] Typically, the context for implementing the alerting process is as follows: an initial communication session is established between a first communication terminal 1 and a second communication terminal 2. For whatever reason, the initial communication session is interrupted: the communication is unintentionally terminated by at least one of the users. As explained previously, at least one of the first communication terminal 1 and second communication terminal 2 is associated with a caller ID IA1 and IA2, respectively, which corresponds to the MSISDN caller ID.

[0049] In particular, during a step 1010, the first communication terminal 1 detects an interruption of the first communication session between the first communication terminal 1 and the second communication terminal 2, for example due to a network loss for the second communication terminal 2. Optionally, this first communication session may be a video communication.

[0050] During step 1011, the first communication terminal 1 sends an interruption message for the first communication session between the first communication terminal 1 and the second communication terminal 2, to a communication management device PGC3. Specifically, the interruption message is included in a message sent by the first communication terminal. The transmission of this communication interruption message is carried out, for example, via a data exchange network. Optionally, this network uses a client-server communication protocol. For example, a client-server communication protocol developed for the Internet, such as the Hypertext Transfer Protocol, better known by its abbreviation " HTTP ».

[0051] In particular, the first communication terminal 1 transmits a first identifier associated with the first communication terminal 1 and a second identifier associated with the second communication terminal 2 to the communication management device PGC3, notably with and / or in the interruption information of step 1011 or during a step 1012 illustrated by the figure 3 The issuance of the first identifier and the second identifier is carried out, for example, via a data exchange network, such as by applying a protocol " HTTP ».

[0052] The data transmitted regarding the interruption of the first communication session includes an interruption notification and / or a first identifier and / or a second identifier for step 1011 and / or step 1012. Optionally, the transmission of this data is carried out jointly, for example, in a single message, a single command to re-establish the first communication session, or a single request to re-establish the first communication session. Alternatively, steps 1011 and 1012 are carried out consecutively. For example, step 1011 is carried out before step 1012, or vice versa.

[0053] In particular, when the communication management device is not implemented in the first communication terminal, during step 1013, the first communication terminal 1 receives a communication request REQ2 to establish a third communication session from the communication management device PGC3. For example, the first communication terminal 1 receives a telephone call, which corresponds to one implementation of the REQ2 request to establish the third communication session, originating from the communication management device PGC3. The REQ2 request to establish a third communication session corresponds, for example, to the REQ2 request to establish a third communication session of the figure 2 described above.

[0054] Specifically, during step 1014, when the third communication session is established between the PGC3 communication management device and the first communication terminal 1, a new first communication session is established between the first communication terminal 1 and the second communication terminal 2. In other words, the first communication session between the first communication terminal 1 and the second communication terminal 2 is re-established.

[0055] To facilitate understanding, we have thus far considered a communication session between only two terminals. Alternatively, the procedures are implemented to re-establish communication sessions with more than two terminals, or "conference mode." In these cases, the steps relating to the second communication terminal are repeated for at least a third communication terminal in a similar manner.

[0056] Up to this point, the processes have been described as being implemented by devices, specifically communication management devices and alerting devices. They can also be implemented by a processor, or more generally by a computer device such as a multifunction phone. Of course, the processes can also be viewed as being implemented by a computer program.

[0057] The invention is not limited to the examples of method and computer program described above, only by way of example, but encompasses all the variants that a person skilled in the art could consider within the framework of the protection obtained as defined by the claims.

Claims

1. Method for alerting of interruption of a communication session, said method being implemented by an alerting device included in a first communication terminal (1), the alerting method comprising: transmission (1011), upon an interruption of a first communication session between the first communication terminal and a second communication terminal, of interruption information relating to the interruption of the first communication session between the first communication terminal (1) and the second communication terminal (2) to a communication management device (3) distinct from the first communication terminal (1) and second communication terminal (2), the transmitted information on interruption of the first communication session comprising a command to restore the first communication session between the first communication terminal and the second communication terminal.

2. Alerting method according to Claim 1, wherein the transmitted information on interruption of the first communication session comprises a first identifier associated with the first communication terminal and a second identifier associated with the second terminal.

3. Alerting method according to any of the preceding claims, comprising detection of an interruption of a first communication session between the first communication terminal and the second communication terminal.

4. Alerting method according to any of the preceding claims, further comprising: reception, in response to the transmitted interruption information, of at least one message relating to implementation of a process for restoring the first communication session, from the communication management device (3).

5. Alerting method according to Claim 4, wherein said message comprises at least one request (REQ2) to set up another communication session between the communication management device (3) and the first communication terminal (1).

6. Alerting method according to Claim 5, further comprising: validation of the request (REQ2) to set up said other communication session, and set up, in response to said validation, of a new first communication session between the first communication terminal (1) and the second communication terminal (2).

7. Communication terminal, called first communication terminal, comprising a device for alerting of interruption of a communication session, capable of transmitting (1011), upon an interruption of a first communication session between the first communication terminal and a second communication terminal, information on interruption of a communication session relating to the interruption of the first communication session between the first communication terminal (1) and the second communication terminal (2) to a communication management device (3) distinct from the first communication terminal (1) and second communication terminal (2), the transmitted information on interruption of the first communication session comprising a command to restore the first communication session between the first communication terminal and the second communication terminal.

8. Communication management method implemented by a communication management device (3), the communication management method comprising: in response to reception (1001), by the communication management device (3), of information on interruption of a communication session relating to an interruption of a first communication session between a first communication terminal (1) and a second communication terminal (2) distinct from said communication management device (3), said interruption information being received from the first communication terminal on occurrence of the interruption, the received information on interruption of the first communication session comprising a command to restore the first communication session between the first communication terminal and the second communication terminal, transmission (1003) of a request (REQ1) to set up a second communication session to the second communication terminal (2), triggered by the received information on interruption of a communication session.

9. Communication management method according to the preceding claim, comprising, in case of failure to set up the second communication session between the communication management device (3) and the second communication terminal (2), reiterating (1004) the step of transmission (1003) of a request (REQ1) to set up a second communication session to the second communication terminal (2).

10. Communication management method according to either of Claims 8 and 9, comprising, on set up of the second communication session between the communication management device (3) and the second communication terminal (2), transmitting (1008) a request (REQ2) to set up a third communication session with the first communication terminal (1) triggering, on set up of the third communication session between the communication management device (3) and the first communication terminal (1), set up of a new first communication session (1009) between the first terminal and the second terminal (1, 2) by merging the second communication session and the third communication session that have been set up.

11. Method according to any of Claims 8 to 10, wherein information on interruption of a first communication session between the first communication terminal (1) and the second communication terminal (2) is received by the communication management device (3) via a data exchange network.

12. Method according to any of Claims 8 to 11, wherein the first communication sessions between the first communication terminal (1) and the second communication terminal (2) are video communication sessions.

13. Communication management device comprising a requester able to transmit a request (REQ1) to set up a second communication session to a second communication terminal (2), triggered by interruption information relating to an interruption of a first communication session between a first communication terminal (1) and a second communication terminal (2) and comprising a command to restore the first communication session, the interruption information having been received on the occurrence of the interruption by the communication management device from the first communication terminal, said communication management device being distinct from the first communication terminal (1) and second communication terminal (2).

14. Computer program comprising instructions for implementing the alerting method according to any of Claims 1 to 6 and / or the communication management method according to any of Claims 8 to 12, when this program is executed by a processor.

15. Non-transient computer-readable recording medium on which is recorded a program for implementing the alerting method according to any of Claims 1 to 6 and / or the communication management method according to any of Claims 8 to 12, when this program is executed by a processor.

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